430 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 9 



and fir (Bargagli, p. 56); spruce (Picea excelsa Lam.), larch {Larix europaea L.), the 

 fir {Aides pedinala D.-C), and the oak (Quercus pedunculata Ehrh.) (Kleine, p. 103). 



Polydrusus {Metallites) atomarius Olivier (laricis Chevrolat) of Europe feeds as 

 an adult on the leaves and Vjuds of larch, pine and fir (Bargagli, p. 56); Pinus silvestris 

 L., spruce {Picea excelsa Lam.), fir {Abies peclinata D.-C), beech {Fagus), horn- 

 beam {Carpinus), oak, and willow {Salix viminalis L.) (Kleine, p. 102). 



Polydrusus {Metallites) marginatus Stephens {iris Olivier) of Europe is believed 

 to breed in the dead roots of cedar {Juniperus communis L.). The adults feed on 

 the foliage and buds of the oaks {Quercus robur pedunculata Ehrh., G. robur sessili- 

 flora Sal., Q. cerris L., and Q. ilex L.), birch {Betula), cedar, beech. Erica arborea, 

 Calluna vulgaris, alder {Alnus) and hazelnut {Corylus) (Bargagli, p. 56); and pine 

 {Pinus silvestris L.) (Kleine). 



Polydrusus {Metallites) parallelus Chevrolat has been found in Sardinia on the 

 buds of Atriplex (Bargagli, p. 56). 



Polydrusus {Metallites) elegantulus Boheman {pistaceae Kiesenwetter) in Greece is 

 found on Pislacia lentiscus (Bargagli, p. 57). 



Polydrusus {Metallites) pirazzolii StierUn in Italy is found in May and June on oak 

 and hornbeam (Bargagli, p. 57). 



Subgenus Piezocnemus Chevrolat 

 Polydrusus {Piezocnemus) chaerodrysius Gredler of Europe lives on pine (Bargagli, 

 p. 58). 



Subgenus Chlorodro.sus Daniel 



Polydrusus {Chlorodrosus) abeillei Desbrochers in France lives on Pyrus torminalia 

 (BargagU, p. 57). 



Polydrusus {Chlorodrosus) amcetius Germar occurs on blackberry {Rubus vitisidcea 

 L.) (Kleine, p. 104) ; R. idaeus, gooseberry {Ribes), and mountain ash {Sorbus aucuparia) 

 (Schaufuss,! p. 1056). 



Subgenus Eudipnus Thomson 



Polydrusus {Eudipnus) mollis Strom {micans Fabricius) of Europe breeds in the 

 ground and the adults feed on the foHage of beech (Bargagli, p. 58); hornbeam, 

 hazelnut, beech, and willow (Bedel, p. 241); pine {Pinus cembra L.), birch, oak 

 {Quercus pedunculata Ehrh.), and apple (Kleine, p. 102). 



Polydrusus {Eudipnus) cocciferoe Kiesenwetter and its variety creticus Kiesenwetter 

 Uves in Greece and Crete on Quercus coccifera (Bargagli, p. 49). 

 Subgenus THOMSONEON'i'Mus Desbrochers 



Polydrusus {Thomsoneonymus) lateralis Gyllenhal of Europe has been taken in 

 June on beech (BargagU). 



Subgenus Eustolus Thomson 



Polydrusus {Eustolus) flavipes DeGeer of Europe feeds as adult on tender foliage 

 of Geum urbanum, and alder (Bargagli, p. 58); alder {Alnus glutinosa Gaertn., and A. 

 incana D.-C.) and hazelnut (Kleine, p. 103). 



Polydrusus {Eustolus) chrysomela Olivier in Austria is found on young beech 

 (BargagU, p. 58); in France on maritime Chenopodiaceae (Bedel, p. 243); on birch 

 (Kleine, p. 103). 



Polydrusus {Eustolus) confluens Stephens occurs on various Genistese {Sarolhamnus, 

 Genista, Ulex) (Bedel, p. 242); Ulex europceus L., and Genista sagittalis (Kleine, p. 103). 



Polydrusus {Eustolus) cervinus Linnaeus of Europe is found in May and June on 

 young branches of oak and birch, and is also found on beech (Bargagli, p. 57); on 

 oak and hazel (Bedel, p. 242). The larvae breed in leaf rolls in terminals sprigs on 



^Schaufuss, C. Calwer's Kaferbuch, 1914. 



